Cream and milk purifier



Aug. 29, 1935. c LE LEWIS A 2,012,196

' CREAM AND MILK PURIFIER Filed Aug. 3, 1954 2 Sheets-Sheet l Fzil. 4?

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CREAM AND MILK PURIFIER Filed Aug. 3, 1934 2 Sheets-Sheet 2 Z 15 Ema 35 15 33/ 31/, 51 H 32. 3]. I, J." fill 'jZ/V/I 23 alaudeiefiayllewis Patented Aug. 20, 1935:

jzgoiallse s CREAM ANDI MILK PUIIHIFIER V Claude-Le Roy Lewis, Omaha; Nebr assignor of I one-half to George W. Street, Omaha; Nebr. I

. Application August 3, 19s4,-ser'ia .1qb.a3s,s8i I I 40mins; (01.219-149 My present invention has to do with the'puri fying of cream and milk from pasteurizers; and its primary object is'the' provision of a machine which -'will effectively fhandle the'highly heated" cream and milk and-purify the same-both by deodorization and straining, in a partial vacuum rendering the operation -both "speedy :and-effective. I 1 v I Iv "Myinventionhas' fora further"object"the '10 provision of a novel-and effective construction and-arrangement-of parts in an organization permitting i easy I 'm'aintenance of cleanliness andsanitation; and presenting an attractive appear- I ance aswell as certain other advantageswhich may be better understood'and'more thoroughly appreciated-from the detailed description andby reference tolthe accompanying drawings. l In the-drawings; illustrating, my invention and forming apart of this specification, I I

Figure l-is' a central vertical transverse sec' tional view through myimproved apparatus,

Figure 2isahorizontal section taken therethrough substantially on line22 ofFi gure 1. I I I Figure 3 is-a vertical sectional viewtaken cen- 1' trally through the apparatus at right angles to Figurel, and, I I I Figure-4 is a detailtop plan the -mesh strainers. I I

"Referring now to the above figures; I propose a cabinet-like casing l0, of" rectangular fOrrn, whose bottom wall l'l' inclines fr'om allf'sides towarda central'outlet' spout l2, and whose open view of ope r top is normally'closed by a cover plate l3 havin g aifianged surrounding edge It! to telescope thez upper edge of the casing),- and a centralup standing handle 15: The casing has" slidably mounted; therein aseries'of superposed spaced strainer structures of" drawer like form which will'behereinafter specifically described. Pref-- era'bly the numberof strainer structureswill -be three andare' 'generallydesignated at IT; [a gae I9'.- The saidxstructures will be referred, to as drawers.- Each drawer memes a bottom-tobe' referred tol The bottom of each drawer constitutes what may be termed a carrier. V I I I Thefront wallof casing ID has averticaliseries of horizontally elongated rectangular; drawer openings and is provided alongthefinner surfaces" 'of-its' side walls with rigid angle bars l6 alined w h the bases of the drawer I openings and form ing slide rails. Y Q

'I'l 1e severa1jdrawers IT, lfi'and l9 arerespectively the top,tintermediate and bottom drawers,

having. respectively front walls, 20, 2| and H each slightly larger than the front wall openings of the cabinet so that the latter are thus substantially closed, 3 when the drawers are I in position within the cabinet, by virtue of flatwi'se:

contact of the outer portionsof said front walls of the drawers against the frontwall-of the cabinet. Eachdrawer has its front wall providedwith handles 23 so that the drawers may; lbe conveniently removed and replaced. 3

The-top drawer I! not only includes the fr tf wall 20, but also an'upstanding endless; wall]! 30 is-arranged above drawer l1.

- formed at its-top with an inwardly curveddow n turned: lip 25 for arresting and directing 'foam;

back into said drawer. The wall 24 is of'l'e ssI height than wall '20. "The drawer I further. includes a bottom 26 having secu'redto'the outeredge thereof, the front wall 20. The bottom 2-6 is offrame like contour andformed with a front,

arear and a pair' of side marginal portionsg2fi, The portion 26' is of greater width than the said otherportions. -'I'he ortions; 26" and 26's" are of.the 'same'width, Formed integral with: the inner sides of said marginal portions is an upstanding frusto pyraniidali screenelement 21 having a series '-of "integral sides 21 which'are perforated throughout. "Each; side 21f extends-inwardly and upwardly fronia marginal portion of bottom 26. The sides 21'1 at their upper ends merge into a vertically ere-1 tending peripherally edged or ribbed conic" dej-f flector 28 positioned axiallywith respect to wall and having the major'portion of its length,

disposed below the free edgeof lip 25; "The'pe ripheral edgesor ribs of deflector ZBa re spaced from each other. :The wall 24 is integral with the inner and side edges of bottom 26"and also" integral with the upper face of marginal portion; 26 at the lengthwise center of the latter. Y

Positioned axially of the casing I0 is. a creanr and milk supply nozzle 29 having a vertically arranged tubular discharge; part 29'. The upper portion of the deflector 28-extends into the 1o'wer, I j end of part 29, The peripheraledges or ribs or u deflector 28 bear against the inner corner' of the lower edge of part 292; Supportedbypne' side of and extending into'casing Ill-is a cream and milk supply pipe 30: which is connected to The pipe and opens'in'to one end of nozzle 29.

Thus the cream'andmilk, delivered the as instance into the top drawer I1, 'is deflectedlo'r' distributed in streams, down the inclined'per-fl forated sections 21 of the bottom" of the drawer and any tendency to run-over' the endless wall" 24f is defeated by the lip 25.

" The cream and milk flow downthrough tha:

perforations of the base sections 21 of top drawer I I into the intermediate drawer I8, any heavy particles or solids being retained in the top drawer and constantly washed from the distributing cone and sections I1 so that the perforations are kept clear for the constant flow of cream and milk.

The intermediate drawer I8, not only includes the front Wall 2|, but also a pair of vertical side walls 3|, a vertical rear wall 3! and a vertical partition 3!. The latter is of less height than the wall 3|. The side walls are of the same height, of less height than the front wall 2I, b ut of greater height than the wall 3I The drawer I8 also includes a bottom 32 formed with an enlarged opening 32 to provide said bottom 32 with side marginal portions 32, a rear marginal portion 32" and a front marginal portion 32!!!!- the portions 32 and the portion 32'.. is. of

materially greater width than the portion 32'." The outer edge of portion 32"" is secured to the.

front wall 2 I. The partition 3I is integral with and flush with the inner edge of portion 32. The side walls 3'I are secured to front wall 2| and to the marginal portions 32" of the bottom 32. The rear Wall 3I' is secured to the marginal portion 32 of bottom 32.

edges of bottom 32. The height of rear wall 3| is such so as to take care of'any overflow and prevent leaking through the front of the cabinet. Anchored to the marginal portions 32" and abutting the rear wall 3 I as well as seating upon the marginal portion32 is a reticulated or foraminous screen element 33 of corrugated form The materialirom which the element '33 is constructed is preferably screen wire of approximately thirty mesh, deeply corrugated as plainly seen in Figure 3 so that the apices of the corrugations form relatively sharp-angles and the-walls are steeply inclined. The marginal portion 32"of bottom,

32 in connection withthe partition 3 I side walls 3! and front wall 2| provides a draintrough 32a.

formed with an outlet 320 closed by a removal plug 32b. The troughs provide means for trapping any splash or overflow of the filtered liquid when the latter impacts a'screen element 33 or 34.. The trapped filtered fluid may be drained from the troughs on the removal of the plugs 32 v 1 The bottom drawer I9 is constructed in the same manner asthe intermediate drawer,except thatthe' wire of the screen element 34 of the bottom drawer is preferably of from fifty to sixty mesh so as to retain the fine sediment which the intermediate drawer fails to catch. The cream; and milk flowing downwardly from the bottom' drawer is directed by the cabinet base I I through the outlet spoutIZ. V v Each of the drawers supporting the, screens may thus be easily and quickly removed and drained. by removing drain plugs 32b, and alsoeasily and quickly cleaned and replaced, while in their effec-:,

tive position the'y close the cabinet-like casing to such an extent that the cream and milk as it The portion 32" is. ofv less width than The side and rear walls 3I and 3I' areflush with the side and rear ating the fan in said casing, is mounted on a rear bracket 39. The outlet opening 35 is of a height to have its 'upper portion arranged above drawer I1 and its lower portion positioned between the bottom of drawer I1 and top of drawer I8. The

fan casing 31, as best seen in Figure 1, has an odors effectively removed, since the partial vacuum increases evaporation. In removing the steam with 'ltS undesirable odors, heat is of course removed and the cream and milk thus cooled to a considerable extent, though the purifying', both by the'removal of odors and by straining, is the resultat which my invention is chiefly aimed.

It is obvious that, in removing the top drawer H, the inletpipe 30 can be turned so that the wall 24 will passbeneath-the fitting 29, and it is equally obvious that-in other respects the construction, arrangement and operation of the parts fulfill the objects first above stated and promote efl'lciency and sanitation.

., What I claim .is: 1 l r V V 1. Acream and milk purifier comprising an upright cabinet-like casing having afiuid outlet at its base, a fluid inlet, means within the casing anddisposed axially of the upper portion of the latter, a series of superposed spaced drawers slidable into and out of the casing through its front Wall intofthe. upper of whichthecreamand milk flows from said inlet, each drawer having a portion of its bottom in the-form of. a screen element for separating impurities .-f rom the cream and milk in its passage successively through the drawers to said outlet, the screen element of the upper drawer carrying an upstanding peripherallyedged deflectorextending into said fluid inlet means from the bottom of the latter, one wall of the casing having an upper-outlet, and means for constantly exhausting steam andother gases from the casing through the outlet in said wall.

2. A cream and milk' purifier comprising an upright cabinet-like casing having a cream and milk outlet at its base and an open top, a cover normally closingthe open top, a vertical series of superposed spaced drawers slidable into and out of the casing through; front openingsin the latter and normally closinglsaid openings when within the casing, each'of said drawers having a portion of its bottom in the form of a strainenand a ;wall surrounding thestrainer, said surrounding walls being fixed to the upper facestof said bottoms adjacent said strainers, a

to turn back foam,

r 3. In. acream and" milk purifier of that type including a casing having an outlet at its lower part anda plurality of lower superposed spaced removable strainer structures, thecombination of a fluid inlet means arranged within the upper portion of said casing, a frusto-pyramidal screen element formed at its 'upper end with a conic deflector extending into saidv inlet. means, said elementhaving flat imperforated laterally exrounding in spaced relation that part of said element above said marginal portions, and a carrier for said element and wall slidably mounted in the casing and-arranged in superposed spaced relation with respect to the upper one of the superposed strainer structures. 1 7

4. In a cream'and milk purifier of that type including a casing having an outlet at its lower part and a plurality 'of lower superposed spaced removable strainer structures, the combination of a fluid inlet means arranged within the upper portion of said casing, a frusto-pyramidal screen element formed at its upper'end with a conic deflector extending into said inlet means, an upstanding endless wall surrounding and extending above said element in spaced relation to the lat- 'ter,'and a carrier for said element and wall slidably mounted in the casing and arranged in superposed spaced relation with respect to the upper one of the superposed strainer structures, and said wall being formed at its top with an inwardly curved downwardly extending endless lip, said lip'having its depending portion being spacedfrom the body of the said wall.

- CLAUDE LE ROY LEWIS. V 

